Wheel for automobile vehicles and the like



y 31, 4- E. ZIPPER ET AL 1,963,115

WHEEL FOR AUTOMOBILE VEHICLES AND THE LIKE Filed Feb. 28, 1929Z'SheetS-Sheet 1 6. gu p 9 W 3 W July 3111934.

E. ZIPPER ET AL WHEEL FOR AUTOMOBILE VEHICLES AND THE LIKE Filed Feb.28, 1929 2 Sheets-Sheet 2 r: z w

rrw m ff Patented July 31, 1934 UNITED ,sT'ArEsf PATENT oFFicE WHEEL'FOR. AUTOMOBILE VEHICLES AND THE'LIx Emil Zipper and WalterZipper,.Vicnna, Austria 1 Application February 28, 1929, Serial No.343,324. v In Austria April 21, 1928 1, 5, class. (01. 30145) Wheels forautomobiles and the like with wheel rims are known, in which one felloeflange is removable and can be connected with the fixed. part of thewheel felloe by means of a quick lock" I 5 which consists of a singlelocking element. Such 'wheels, in which the removal and locking of theremovable flange is. just as simple and quick to accomplish as theunlocking and locking of a door, have proved satisfactory with tyreslocated directly in the wheel rim, because the indiarubber tyre connectsfirmly with the wheel rim in consequence of the air pressure of theinflated tire, the weight of the vehicle and the travelling,

stresses. The removal and putting on of the tyre can however only beefiected with the air 'tube uninflated, and it is therefore impossibleto carry inflated spare tyres on the vehicle.

Efforts have therefore been made to connect a removable rim upon whichthe pneumatic tyre can be completely inflated with the wheelfelloe bymeans of a quick lock in the same manner as in the caseof theabovementioned wheels. M It is desired in this way both to enable sparetyres mounted on removable rims and inflated tobe carriedon the vehicleand at the same-time to ob.- tain an easy and quickly operableconnection of the rim to the felloe. Such wheel constructions havehowever been found unusable, because the detachable rim upon whichthegreat tangential, and axial forces occurring in travelling. directlyactmust be connected very firmly with the felloe; in order reliably toprevent any play-between these two parts. By no locking device, however,can a connection'of a detachable felloe to the;

felloe beobtained which is sufficiently firm both in a tangential and inan axial direction. De-

tachable felloes with inflated spare tyres mounted thereon havethereforehitherto only been able to be secured or clamped to thewheelfelloe by,

40 means of a number of ordinary connecting screws.

The present invention relates 130.3 Wh661 f011 automobile vehicles andthe like, where ina detachable rim divided perpendicularly to the axisof the wheel is so constructed that after being;

applied to the felloe it .clamps'itself upon the felloe under theinternal pressure of the tyre, so

that the removable auxiliary rim no longerhas.

to be connected with the felloe by screws or the like. but can befastened by a single quickly and According to' easily operable lockingelement. the invention the two parts of the rim are so connected withone another that this connection, after the rim carrying the fullyinflated tyre has been mounted upon the felloe, isso far releasable thatthe two parts of the rim are pressed away:

from one another in the direction of the axis of the wheel by theinternal-pressure of the tyre, and consequently the clamping of theremovable rim on to the wheel rim is effected by the internal pressureof the tyre. For the releasable con- 0 nectingofthe two parts of thedetachable rim there serves an annular locking element, the diameter ofwhich can be diminished when the rimis mounted on the wheel felloe, andwhich thereby sets free for a displacement in the axial direction thetwo parts'of the rim that were previouslyfirmly connectedwith oneanother. In this case one part of the removable rim itself is preferablyconstructed as alocking element, by' being radially split and providedwith appliances iorincreasing and diminishing its diameter, by whichitis conn'nected with the other part of the detachable rim firmly, andin the axial direction yieldingly." a

In the accompanying drawings, Figures 1 to 4 and 5 to 10 respectivelyillustrate two constructional examples of the invention.

Figures '1 and 2 show cross sections through the wheel rim and felloe atthe connecting point of the locking elementand at an intermediate "30position respectively.

v Figure. 3 shows a longitudinal section through the wheel attheconnecting point of the looking element. Figured shows the connectingposition of the locking element as seen from the axis of the wheel.

Figures'5, 6 and 7 show cross sections through the wheel rim and felloeof a second constructional form of the invention.

- Figure 8. shows a longitudinal section through the wheel at thelocking position.

Figures 9 I and 10 illustrate a detail of the locking device.

In the constructional examples of the invention illustrated in theaccompanying drawings the wheel felloe a is constructed in the manner ofan axially divided felloe and is provided with a detachable flange b,while the other flange d is made' in one piece with the wheel felloe a.The detachable flange b can be connected with the felloe a by means ofany suitable locking device, for instance by means of an open steel ring0, the diameter of which can be increased and diminished by, alteringthe distance between its ends. Upon being adjusted to the smallerdiameter the ring 0 engages in a locking groove g provided in the felloea and locks the detachable flange b. When the diameter of the ring 0 isincreased it passes out of the locking groove g and 119 the flange b,together with the locking ring 0, and also the detachable rim, can nowbe removed.

In the constructional form according to Figures 1 to i the removable rimis divided perpendicular- 1y to the axis of the wheel, and its parts aredenoted by m and n. The adjacent edges h of the parts m and n of the rimare bent upwards and then downwards, as shown in Figures 1 and 2, andconnected with one another by an annular locking element 7. The lockingring f, open at one point, is of channel-shaped cross section, as shownin Figures 1 and 2, and its diameter can be increased anddimin'ishedby'means of a device to be hereinafter described. The downwardlydirected flanges or limbs h of. the parts m and n of the rim and alsothe upwardly directed flanges or limbs f1, of the locking ring 7, are alittle inclined, as shown in Figures 1 and 2. When the locking ring 7 islocated in the position shown in full lines in Figure 1 it holds theparts m and n of the rim firmly in the position indicated byfull linesin Figure 1, in which its flanges are located at a short distance 1/from the flanges b and d of the felloe. If the diameter of the ring 7 isreduced, as indicated in dotted lines in Figure 2, the parts of the rimcan move away from one another in the direction of the axis of thewheel, indicated by the arrow I.

The ends of'the ring 7 overlap one another,

as shown in Figures 3 and 4, and are each provided with a short pin, 7'1and 7'2, accessible through apertures 2'; and i2 provided in the felloeand can be moved nearer together and further apart by means of asuitable spannerlike impleremoved from the felloe a, is effectedin thefollowing manner One end of the ring 7 is pressed towards the centre ofthe rim and pulled sideways, whereupon the entire ring 7 can easily betaken out of the parts m, n of the rim. The parts m and n of the rim arenow taken apart, the tyre is slipped on to one of them, and the otherpart of the rim The ring 7 is now inserted,

placed in the tyre. one of its ends being again'pushed towards thecentre, and is put round the flanges h" ofthe parts m and n of the'rim.The-inserted ring 7 is adjusted to the larger diameter and lockedagainst a reduction in diameter, whereupon the v tyre is fully inflated.The rim m, n thus pro- (3') v'ided with an inflated tyre, is now slippedon to the felloe a, and the flange b is mounted, and.

detachable rim apart with greater force, so that their flanges arepressed firmly against the flanges band d ofthe felloe a, and acompletely firm connection between the removable rim m, n and the felloea is established.

' The removable rim m, n provided with an in-' fiated tyre can obviouslybe carried on the vehicle .spare rim m, n and the flange b are nowslipped on in the manner previously described, and

locked by means of the ring 0, and finally the connecting ring of thefresh rim put on is V unlocked.

According to a further feature of the invention, one part ofthe-felloeitself it preferably constructed as a locking element for the two partsof the detachable rim. This constructional form of the'invention isillustrated in Figures 5 to 10.

The detachable rim consists of a broad part 71, which is not split in aradial direction, and of a narrower part q, which is radially split, sothat its diameter can beincreased or diminishedb'y increasing ordiminishing the distance between its ends qr and Q2, shown in Figure 8.The broad part 72 of the rim is provided, at its margin fac ing thenarrower part'q, with a flange r bent down obliquely, while the marginof the narrower part q of the rim is provided with a channel-shaped bends, in which. the flange r of the part 10 of the rim engages as shown inFigures 5 and 6. If

the diameter of the part q of the rim is increased or diminished, theoblique flange s slides in the direction of the arrows III and IVrespectively (Figure 5) along the oblique'flange 1, and thus thedistance of the flanges m1 and m of the parts m and n of the rim fromone another is slightly decreased or increased. In the neighbourhood ofeach of the ends (11 and qz of the part q of the rim is secured a pin7'1, 7'2 which serves for the fitting'on of a device for increasing anddiminishing the diameter of the'part q of the rim. To

enable these pins 7'1 and 72 to be fastened to the sheet metal rim partq the oblique flange s there-' of is bent at rightangles'for quite ashort length,

as shown inFigure '7, and two small blocks t are welded thereto, towhich the pins 7'1 and 7'2,

secured against rotation, are fastened. At this position, asFigure 7shows, the oblique flange 1 of the part p'of'the-rim is bent back againinto the cylindrical surface of the part p of the rim. To the pin 71 issecured rotatably one end of a guiding link it, the otherend of which isconnected by'means of a bolt 1) with a second guiding link" 11]. Thefree end of the guiding link 10 is provided with a fork-shaped recess a,which can be suspended'as shown in Figure 8, in the pins-7'z,

so thattheguiding links u and 22 form a toggle-- joint closure for theends of the part q of the rim. 'If the bolt 12 is pressed radiallyoutwards in the direction of the arrow II in Figure 8, it thrusts theends (11 and qz of the parts q of the rim apart, so that the gap atbetween these two ends is increased. The bolt 1) thus passes beyond theline the oblique flange s of the part q of the rim does not touch thebottom of the recess 01 even when the part q of the rim is contractedand its flange 1714 rests upon the flange b of the felloe a. At theplace at which the toggle closure u, '0, w is located the wheel rim isprovided with a deeper hollow 0, which has an aperture 02, through whichthe toggle closure can be actuated by means of a suitable implement.This aperture 02 is closable by means of a plate, a plug screw or ascrew serving for actuating the toggle closure n, o, w.

The fitting of a tyre on to the rim 1), q removed from the felloe a isefiected in the following manner.

The toggle closure 11,, v, w is brought into the position indicated bydotted lines in Figure 8 and the fork-shaped recess z of the guidinglink w is removed from the pin 5'2. The part q of the rim is now open,and its end qz can be pressed towards the centre and drawn sideways outof the part p of the rim. The tyre is now slipped on to the part p ofthe rim and the part q of the rim is thereafter suspended again, with,the end qz first, in the rim part p, so that the oblique flanges 1, sinterengage with one another. The fork-shaped recess .2 of the guidinglink to is now mounted upon the pin '2 and the toggle closure 11., v, wbrought into the position shown in full lines in Figure 8. The parts pand q of the rim are now firmly connected with one another and the tyrecan be fully inflated upon it. The felloe with the inflated tyre is nowslipped on to the wheel rim (1 and looked, just as in the case of theconstructional form according to Figures 1 to l, by means of the flangeb and the locking ring 0. The toggle closure u, v, w, is now broughtinto the position shown in dotted lines in Figure 8. so that the part qof the felloe is compressed by the internal pressure of the tyre actingin the direction of the arrow IV in Figure 5. The flanges m1 and m ofthe detachable rim p, q settle firmly upon the flanges b and d, of thefelloe a, so that a completely fast connection between the rim p, q andthe felloe a is established. The gap :1: between the ends qi and qz ofthe rim part q is thus essentially narrowed, but the ends :11 and 2 donot abut against one another even when the toggle closure u, v, w isreleased, so the internalpressure of the tyre presses the part q of therim under all circumstances against the felloe a and the flange b. Thenarrow gap :0 remaining between the ends (11 and 2 is covered by anunderlay an of thinsheet material (Figure 8) so that no water can enter.

The rim 1), q provided with the inflated tyre may be carried on thevehicle as a spare tyre. The changing of a rim carrying a damaged tyrefor a fresh one is effected in the same manner as with theconstructional form illustrated in Figures 1 to 4. After unlocking theflange b the latter is taken off and the rim changed. After this hasbeen done, and the flange b is locked again, the toggle closure u, o, wis released.

In the constructional examples of the invention illustrated in thedrawings the flanges b and cl of the felloe a are just as high as theflanges of the detachable rim. Instead of the solid flanges of thefelloe, however, more wedge surfaces might occur, against which bear theparts m and n or p and q of the detachable rim pressed away from oneanother by the internal pressure of the tyre.

What we claim is:

1. A vehicle wheel comprising a felly and a demountable rim, the fellyhaving a seat for the rim laterally fixed relatively to said felly and aremovable ring seat for the rim, means for looking the removable ringseat to the felly, the demountable rim consisting of two sections, eachhaving conical connecting surfaces, the rim sections being movablerelatively to each other in the direction of the wheel-axis by the innerpressure of an inflated tire to clamp the demountable rim between thefixed seat and the removable ring seat.

2. A vehicle wheel comprising a felly and a demountable rim, the fellyhaving a fixed lateral seat for the rim and a removable ring forming alateral seat for the rim,'means for interlocking the removable ring seatwith the felly, the demountable rim consisting of two sections, eachsection having a conical connecting surface engaging the one with theother, one of the rim sections being transversely split whereby it maybe increased in diameter, both the rim sections being relatively movablein the direction of the wheel-axis by the inner pressure of an appliedinflated tire to clamp the rim sections between the fixed seat and theremovable ring seat.

3. A vehicle wheel comprising a felly and a demountable rim, the fellyhaving a fixed lateral seat for the rim and a removable ringconstituting a laterally removable seat for the rim, means forinterlocking the removable ring seat to the felly, the demountable rimconsisting of two sections, each section having a conical connecting endsurface engaging with the conical end surface of the other whereby theinner pressure of an applied inflated tire will clamp the rim sectionsbetween the fixed seat and the removable ring seat, one of the rimsections being transversely split, means for expanding the transverselysplit section of the rim to its larger diameter both rim sections whenconnected together fitting lightly between said fixed seat and removablering seat.

4. A vehicle wheel comprising a felly and a demountable rim, the fellyhaving a fixed lateral seat for the rim and a laterally removable ringseat for the rim, means for locking the removable ring seat to thefelly, the demountable rim consisting of two sections, said sectionshaving conical connecting surfaces engaging with each other the conicalconnecting surfaces being so inclined that the rim sections are movablerelatively to each other in the direction of the wheelaxis by the innerpressure of a tire to clamp the rim sections between the fixed seat andthe removable ring seat, one of therim sections being transverselysplit, and means for expanding one of the transversely split sections ofthe rim to loosen it from its clamping position.

5. A vehicle wheel comprising a felly and a demountable rim, the fellyhaving a seat laterally fixed relatively to the rim and a second seatfor the rim comprising a ring removable from said felly, means forinterlocking the removable ring seat to the telly, the demountable rimcomprising two circular sections seated between and against said seats,each of said sections having means between the sections and the fellyincluding inclined surfaces movable to clamp a tire between saidsections and between the fixed seat and the removable ring seat by theinner pressure of said tire when inflated.

EMIL ZIPPER. WALTER ZIPPER.

